FITS images used in this processing run:

Field Per-02-Q1b1x1 reference image: Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Field Per-02-Q1b1x1 reference image: Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
Field Per-02-Q1b1x1 second-epoch image: Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
Field Per-02-Q1b1x1 second-epoch image: Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461049.58214624 09.01.2026 01:58:07.435   /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
First image: 2461049.58214624 09.01.2026 01:58:07.435   /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Last  image: 2461304.64893456 21.09.2026 03:34:17.946   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 0
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.43
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 5 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  10.0             # minimum number of pixels above threshold
DETECT_THRESH   10.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 10.0             #  or , in mag.arcsec-2
SATUR_LEVEL     55000.0         # level (in ADUs) at which arises saturation
GAIN            0.37            # detector gain in e-/ADU
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  23250
Objects passed selection criteria:  23073
Measurements per detected object (mean, median, min, max):    2.2    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.2    2.0    2    4
Average stars detected per image: 13552.8
Average stars matched: 13074.8 (96.473 %)
Memory usage VmPeak:   247844 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Sep 11 14:55:52 CDT 2026
VaST build number  1.0rc89-210-g97d43bca
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-09-11)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Sun Sep 20 22:39:55 CDT 2026
Host name: tau
############################################################
ERROR: large change in astrometric-star counts between the two new images (q1: 696 -> 516, 25.862% > 20%; fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits vs fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits) - possible passing clouds or a bad plate solution; continuing processing
ERROR: large change in astrometric-star counts between the two new images (q2: 22 -> 39, 43.590% > 20%; fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits vs fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits) - possible passing clouds or a bad plate solution; continuing processing
## VaST run with SExtractor config file default.sex.telephoto_lens_vSTL ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461049.58214624 09.01.2026 01:58:07.435   /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
First image: 2461049.58214624 09.01.2026 01:58:07.435   /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Last  image: 2461304.64893456 21.09.2026 03:34:17.946   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 26
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.11
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 117 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  2.0             # minimum number of pixels above threshold
DETECT_THRESH   3.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 3.0             #  or , in mag.arcsec-2
SATUR_LEVEL     57000.0         # level (in ADUs) at which arises saturation
GAIN            0.83            # detector gain in e-/ADU
WEIGHT_TYPE BACKGROUND
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  172639
Objects passed selection criteria:  171920
Measurements per detected object (mean, median, min, max):    2.3    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.3    2.0    2    4
Average stars detected per image: 105858
Average stars matched: 101277 (95.6723 %)
Memory usage VmPeak:   569120 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Sep 11 14:55:52 CDT 2026
VaST build number  1.0rc89-210-g97d43bca
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-09-11)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Sun Sep 20 22:45:30 CDT 2026
Host name: tau
############################################################

######## Processing parameters ########
AAVSO_COMMENT_STRING= NMW-TexasTech Camera-1 135mm f/2.2 telephoto lens + QHY600M CMOS
ASTCHECK_ASTEROID_SEARCH_RADIUS_ARCSEC= 
BAD_REGION_FILE= /var/www/nmw_calibration/TTUQ1b1x1/TTUQ1_bad_region.lst
CAMERA_SETTINGS= TTUQ1b1x1
CHECK_POINTING_ACCURACY= yes
DARK_FRAMES_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ1b1x1/darks
EXCLUSION_LIST= ../exclusion_list_TTUQ1.txt
FILTER_BAD_IMG__MAX_APERTURE_STAR_SIZE_PIX= 12.5
FILTER_BAD_IMG__MAX_ELONGATION_AminusB_PIX= 0.55
FILTER_BAD_IMG__MIN_APERTURE_STAR_SIZE_PIX= 2.0
FILTER_BRIGHT_MAG_CUTOFF_TRANSIENT_SEARCH= -5
FILTER_FAINT_MAG_CUTOFF_TRANSIENT_SEARCH= 15.5
FLAT_FIELD_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ1b1x1/flats
FRAME_EDGE_OFFSET_PIX= 100
GAIA_BAND_FOR_CATALOGED_SOURCE_CHECK= 
MAX_NEW_TO_REF_MEAN_IMG_VALUE_RATIO= 100
DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK= yes
MAX_NEW_IMG_MEAN_VALUE= 25000
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS= 0.18
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS_SOFT_LIMIT= 0.12
MPC_CODE= V36
NMW_CALIBRATION= /var/www/nmw_calibration
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_HARD_LIMIT= 10000
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_SOFT_LIMIT= 8000
OMP_NUM_THREADS= 3
ONLINE_MPCHECKER_BUTTON_ASTEROID_SEARCH_RADIUS_ARCMIN= 
PHOTOMETRIC_CALIBRATION= 
REQUIRE_PIX_SHIFT_BETWEEN_IMAGES_FOR_TRANSIENT_CANDIDATES= yes
SEXTRACTOR_CONFIG_BRIGHTSTARPASS= default.sex.telephoto_lens_onlybrightstars_v1
SEXTRACTOR_CONFIG_FILES= default.sex.telephoto_lens_onlybrightstars_v1 default.sex.telephoto_lens_vSTL
SEXTRACTOR_CONFIG_FILES_HIGH_PRIORITY_EXTRA= default.sex.telephoto_lens_vTTU
HIGH_PRIORITY_FIELDS= Sco6 Oph-08-Q1b1x1 Oph-08-Q2b1x1 Sco-04-Q1b1x1 Sco-04-Q2b1x1 Sgr-04-Q1b1x1 Sgr-04-Q2b1x1 242
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP= 
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION= 
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER= 
HOME= 
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
GAIA_DR2_CLIENT=vizquery (lib/vizquery -> VizieR vizier.cds.unistra.fr)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
Per-02-Q1b1x1
#######################################
########### Starting Per-02-Q1b1x1 ###########
Processing Per-02-Q1b1x1
server tau has sufficient free disk space available: 109482 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 109482 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
Small preview (one of the new images): 

Large previews of the second-epoch (new) images:

MAKE_PNG_PLOTS=yes


renamed 'Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.png' -> 'transient_report/Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits_preview.png'

Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits


renamed 'Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.png' -> 'transient_report/Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits_preview.png'

Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits




Read-check the input FITS images... read-check OK
Blank image check the input FITS images... blank-image-check OK
Read date check the input FITS images... read-date-check OK
Mean value check the input FITS images... OK, at least two new images have mean values below the threshold.
----------------------------------------------
INFO: REFERENCE_EPOCH__FIRST_IMAGE_MEAN_VALUE= 545.6414
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 824.5112
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 5103.6362
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 2213.2559
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 5121.9112
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 2164.1415
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 9.35346
INFO:                  SECOND_EPOCH__SD_ratio= 0.023
INFO: the new-to-reference mean image value ratio check is disabled (DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK=yes) - expected with a background-subtracted reference image
----------------------------------------------
Calibration settings: DARK_FRAMES_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ1b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ1b1x1/flats
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                  0.0 / [degC] CCD temperature
FOCTEMP =     26.2900009155273 / [degC] Focuser temperature
AMBTEMP =                 25.5 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits 
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-09-20T22:33:22.8828675' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-21T03:33:22.8828675' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61304.1481815046 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-21T03:33:32.7859721' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61304.1482961229 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-33d3d743814b8b447' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                  0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU1'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     53.9973152536716 / [deg] RA of telescope" status=0
Record 32: "DEC     =     45.9999108246856 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     15.7116666666667 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     44.5955555555556 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.64671021220426 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1015.0 / [m] Observation site elevation" status=0
Record 38: "SITELAT =     33.7480555555556 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=    -101.958333333333 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'Per-02'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '03 36 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+46 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                29521 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                29521 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     26.2900009155273 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     26.2900009155273 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 14.0 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 49.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=                899.9 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 25.5 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 16.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             3.600288 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             1.400112 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/d_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits :)

Spent 0.515153 seconds 
renamed 'mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ1b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/d_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 36313.440328
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits :)


No overscan detected - all values seem high! (left_median=23343.0, right_median=27331.5)
renamed 'mff_TTUQ1b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     27.2900009155273 / [degC] Focuser temperature
AMBTEMP =                 25.5 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-09-20T22:34:17.9465308' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-21T03:34:17.9465308' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61304.1488188193 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-21T03:34:27.8479443' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61304.1489334144 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-33d3d743814b8b447' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                 -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU1'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =      53.997315146611 / [deg] RA of telescope" status=0
Record 32: "DEC     =     45.9999107869811 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     15.8483333333333 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     44.6866666666667 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.61688767173674 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1015.0 / [m] Observation site elevation" status=0
Record 38: "SITELAT =     33.7480555555556 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=    -101.958333333333 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'Per-02'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '03 36 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+46 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                29521 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                29521 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     27.2900009155273 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     27.2900009155273 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 14.0 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 49.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=                899.9 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 25.5 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 16.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             3.600288 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             1.400112 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/d_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits :)

Spent 0.554103 seconds 
renamed 'mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ1b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/d_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 36313.440328
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits :)


No overscan detected - all values seem high! (left_median=23343.0, right_median=27331.5)
renamed 'mff_TTUQ1b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
Dark frame used to calibrate the second-epoch images:



Flat field used to calibrate the second-epoch images:



after the calibration attempt:
SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
Previews of the CALIBRATED second-epoch images:


fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits



fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits




Updating neverexclude_list.txt
'/var/www/nmw_calibration/neverexclude_list.txt' -> './neverexclude_list.txt'
Choosing bad regions list
'/var/www/nmw_calibration/TTUQ1b1x1/TTUQ1_bad_region.lst' -> 'bad_region.lst'
wait
*------ default.sex.telephoto_lens_onlybrightstars_v1 ------*
'default.sex.telephoto_lens_onlybrightstars_v1' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_onlybrightstars_v1

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
  
SExtractor catalog cache: saved Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.cat to cache
SExtractor catalog cache: saved Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_onlybrightstars_v1
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
Checking WCS cache directory local_wcs_cache
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
The reference JD(UT) for computing planet and comet positions: 2461304.64829725
Re-using ../asassn_transients_list.txt
'../asassn_transients_list.txt' -> 'asassn_transients_list.txt'
Plate-solving the images
'tocp_transients_list.txt' -> '../tocp_transients_list.txt'
wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits exists and is non-empty
wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits exists and is non-empty
wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits exists and is non-empty
wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits (1st reference image)
verification OK: wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Image size: 941.5'x627.0'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 03:36:01.913 +46:00:00.61 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits (1st new image)
verification OK: wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
Image size: 944.5'x626.8'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.92"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 03:36:43.314 +45:59:59.09 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 03:36:01.913 +46:00:00.61
Second-epoch image center 03:36:43.314 +45:59:59.09
Angular distance between the image centers 0.1198 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits (2nd new image)
verification OK: wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
Image size: 944.5'x626.8'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.92"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 03:36:40.670 +45:59:26.62 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 03:36:01.913 +46:00:00.61
Second-epoch image center 03:36:40.670 +45:59:26.62
Angular distance between the image centers 0.1126 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center  03:36:43.314 +45:59:59.09
Second-epoch second image center 03:36:40.670 +45:59:26.62
Angular distance between the image centers 0.01183 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits &> /tmp/tmp.GI9ZIbLOGH
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits &> /tmp/tmp.MwTBW3qnQ5
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits &> /tmp/tmp.5gAHAYk1jf
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits &> /tmp/tmp.B0HPaFT01E
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
Calibrating the magnitude scale
Found non-empty wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits and wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat 
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
'tns_transients_list.txt' -> '../tns_transients_list.txt'
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits and wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat 
Found non-empty wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits and wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat
The reference image (wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits) and catalog (wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat) found
'wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat' -> 'wcsmag.cat'
Read 24919 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 41.2386 to 65.8886 deg, Dec +39.8263 to +51.4097 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 41.2386 to 65.8886 deg, Dec 39.8263 to 51.4097 deg
Loaded 12587 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 8299 out of 9376 total matches.
Matched with Tycho-2 9376 out of 24919 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.961300
a=0.000000 b=1.000000 c=22.961300
From vast_summary.log: estimated ref. image limiting mag.:  -7.43
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.53

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.53

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 24919 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 41.2386 to 65.8886 deg, Dec +39.8263 to +51.4097 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 41.2386 to 65.8886 deg, Dec 39.8263 to 51.4097 deg
Loaded 12587 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 8299 out of 9376 total matches.
Matched with Tycho-2 9376 out of 24919 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Forced-photometry filter: calibrated wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits -> calib.txt_param_ref_wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits (aperture=5.8)
Read 25014 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 41.2390 to 65.8888 deg, Dec +39.8264 to +51.4150 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 41.2390 to 65.8888 deg, Dec 39.8264 to 51.4150 deg
Loaded 12591 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 8306 out of 9365 total matches.
Matched with Tycho-2 9365 out of 25014 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
Forced-photometry filter: calibrated wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits -> calib.txt_param_ref_wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits (aperture=5.8)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 0 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.0 pix  Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
 2.0 pix  Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
 2.8 pix  fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
 2.8 pix  fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
Limiting magnitude estimates:
 15.5 mag.  Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
 15.5 mag.  Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
 13.3 mag.  fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
 13.5 mag.  fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
cp: cannot create regular file 'local_wcs_cache/': Not a directory
All-image limiting magnitude estimate:  13.3 (SNR )  10.7 (80% of stars)  with default.sex.telephoto_lens_onlybrightstars_v1
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
############ /tmp/tmp.GI9ZIbLOGH (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits' -> 'wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
WCS_IMAGE_NAME=wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
WCS-calibrated image found: wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Checking if the catalog wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat corresponding to the image wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits alredy exist and is non-empty...
Catalog wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat corresponding to the image wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
WCS catalog name: wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=2608, bad_region=0, passed=24919
Got 24919 stars (including 22273 good ones) from the SExtractor catalog wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat 
util/solve_plate_with_UCAC5 got 24919 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.5'
Seting catalog search parameters based on the expected field of view 941.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013076 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010461 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4941 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4916 matched stars entering correct_measured_positions(), 4916 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4916 matched stars entering correct_measured_positions(), 24919 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4941 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4917 matched stars entering correct_measured_positions(), 24919 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Accuracy estimation diagnostic: 4917 matched stars entering correct_measured_positions(), 24919 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Excluding outliers - 4917 stars left (next iteration limit 5407)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits N_match=4917 sigma_overall_arcsec=0.415 sigma_q1_arcsec=0.553 sigma_q2_arcsec=0.385 sigma_q3_arcsec=0.375 sigma_q4_arcsec=0.356 n_q1=1270 n_q2=1090 n_q3=1297 n_q4=1260 worst_quadrant_to_overall_ratio=1.334
The image catalog is written to wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits -region wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.MwTBW3qnQ5 (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits' -> 'wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
WCS_IMAGE_NAME=wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
WCS-calibrated image found: wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
Checking if the catalog wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat corresponding to the image wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits alredy exist and is non-empty...
Catalog wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat corresponding to the image wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
WCS catalog name: wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=17, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=2561, bad_region=1, passed=24997
Got 24997 stars (including 22411 good ones) from the SExtractor catalog wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat 
util/solve_plate_with_UCAC5 got 24997 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.5'
Seting catalog search parameters based on the expected field of view 941.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013076 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010461 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4941 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4914 matched stars entering correct_measured_positions(), 4914 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4914 matched stars entering correct_measured_positions(), 24997 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4941 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4915 matched stars entering correct_measured_positions(), 24997 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Accuracy estimation diagnostic: 4915 matched stars entering correct_measured_positions(), 24997 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Excluding outliers - 4915 stars left (next iteration limit 5405)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits N_match=4915 sigma_overall_arcsec=0.389 sigma_q1_arcsec=0.473 sigma_q2_arcsec=0.380 sigma_q3_arcsec=0.359 sigma_q4_arcsec=0.340 n_q1=1272 n_q2=1082 n_q3=1307 n_q4=1254 worst_quadrant_to_overall_ratio=1.218
The image catalog is written to wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits -region wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.5gAHAYk1jf (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
WCS_IMAGE_NAME=wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
WCS-calibrated image found: wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
Checking if the catalog wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits.wcscat corresponding to the image wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits alredy exist and is non-empty...
Catalog wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits.wcscat corresponding to the image wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
WCS catalog name: wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=174, bad_region=0, passed=2410
Got 2410 stars (including 2233 good ones) from the SExtractor catalog wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits.wcscat 
util/solve_plate_with_UCAC5 got 2410 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 944.5'
Seting catalog search parameters based on the expected field of view 944.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013118 (47.2 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010494 (37.8 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 653 to 708 (Dec 40.7 to 51.3)
Done reading UCAC5 zone files...
Matched 2199 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2176 matched stars entering correct_measured_positions(), 2170 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.48" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2176 matched stars entering correct_measured_positions(), 2402 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.48" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 653 to 708 (Dec 40.7 to 51.3)
Done reading UCAC5 zone files...
Matched 2199 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2175 matched stars entering correct_measured_positions(), 2402 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.49" 
Accuracy estimation diagnostic: 2175 matched stars entering correct_measured_positions(), 2402 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.50" 
Excluding outliers - 2175 stars left (next iteration limit 2393)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: the 2175 catalog matches do not cover the frame (696/22/883/574 per quadrant, need 135 in each) - keeping the original solution
WCS_QUALITY_DIAG: file=fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits N_match=2175 sigma_overall_arcsec=0.509 sigma_q1_arcsec=0.588 sigma_q2_arcsec=0.476 sigma_q3_arcsec=0.427 sigma_q4_arcsec=0.597 n_q1=696 n_q2=22 n_q3=883 n_q4=574 worst_quadrant_to_overall_ratio=1.173
The image catalog is written to wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits -region wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.B0HPaFT01E (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
WCS_IMAGE_NAME=wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
WCS-calibrated image found: wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
Checking if the catalog wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits.wcscat corresponding to the image wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits alredy exist and is non-empty...
Catalog wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits.wcscat corresponding to the image wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
WCS catalog name: wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=169, bad_region=0, passed=2207
Got 2207 stars (including 2034 good ones) from the SExtractor catalog wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits.wcscat 
util/solve_plate_with_UCAC5 got 2207 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 944.5'
Seting catalog search parameters based on the expected field of view 944.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013118 (47.2 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010494 (37.8 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 653 to 708 (Dec 40.7 to 51.3)
Done reading UCAC5 zone files...
Matched 1999 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1978 matched stars entering correct_measured_positions(), 1967 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.48" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1978 matched stars entering correct_measured_positions(), 2184 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.49" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 653 to 708 (Dec 40.7 to 51.3)
Done reading UCAC5 zone files...
Matched 1998 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1976 matched stars entering correct_measured_positions(), 2184 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.51" 
Accuracy estimation diagnostic: 1976 matched stars entering correct_measured_positions(), 2184 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.51" 
Excluding outliers - 1976 stars left (next iteration limit 2175)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: the 1976 catalog matches do not cover the frame (516/39/871/550 per quadrant, need 123 in each) - keeping the original solution
WCS_QUALITY_DIAG: file=fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits N_match=1976 sigma_overall_arcsec=0.497 sigma_q1_arcsec=0.604 sigma_q2_arcsec=0.724 sigma_q3_arcsec=0.416 sigma_q4_arcsec=0.543 n_q1=516 n_q2=39 n_q3=871 n_q4=550 worst_quadrant_to_overall_ratio=1.457
The image catalog is written to wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits -region wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Saving the final (post-refit) wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits to local_wcs_cache/
'wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits' -> 'local_wcs_cache/wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits'
Saving the final (post-refit) wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits to local_wcs_cache/
'wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits' -> 'local_wcs_cache/wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits'
Saving the final (post-refit) wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits to local_wcs_cache/
'wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits' -> 'local_wcs_cache/wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits'
Saving the final (post-refit) wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits to local_wcs_cache/
'wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits' -> 'local_wcs_cache/wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits sigma_overall=0.415 worst_q_ratio=1.334
ref2=Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits sigma_overall=0.389 worst_q_ratio=1.218
new1=fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits sigma_overall=0.509 worst_q_ratio=1.173
new2=fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits sigma_overall=0.497 worst_q_ratio=1.457
reference average sigma_overall=0.402 worst_q_ratio=1.276
warn-on-ratio threshold: 2.0x reference
###################################
ERROR: large change in astrometric-star counts between the two new images (q1: 696 -> 516, 25.862% > 20%; fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits vs fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits) - possible passing clouds or a bad plate solution; continuing processing
ERROR: large change in astrometric-star counts between the two new images (q2: 22 -> 39, 43.590% > 20%; fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits vs fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits) - possible passing clouds or a bad plate solution; continuing processing

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020_astrometric_residuals.png (4917 matched stars from wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.38 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021_astrometric_residuals.png (4915 matched stars from wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.35 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108_astrometric_residuals.png (2175 matched stars from wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.45 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109_astrometric_residuals.png (1976 matched stars from wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.46 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits'
Saving fully-calibrated image wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits'
Preparing the HTML report for the field Per-02-Q1b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
No candidates found here
Prepared the HTML report for the field Per-02-Q1b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
wait
*------ default.sex.telephoto_lens_vSTL ------*
'default.sex.telephoto_lens_vSTL' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_vSTL

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
  
SExtractor catalog cache: saved Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.cat to cache
SExtractor catalog cache: saved Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Creating symlink local_wcs_cache/wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
Creating symlink local_wcs_cache/wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
Creating symlink local_wcs_cache/wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
Plate-solving the images
wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits exists and is non-empty
wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits exists and is non-empty
wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits exists and is non-empty
wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits (1st reference image)
verification OK: wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Image size: 941.5'x627.0'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 03:36:01.913 +46:00:00.61 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits (1st new image)
verification OK: wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
Image size: 944.5'x626.8'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.92"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 03:36:43.314 +45:59:59.09 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 03:36:01.913 +46:00:00.61
Second-epoch image center 03:36:43.314 +45:59:59.09
Angular distance between the image centers 0.1198 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits (2nd new image)
verification OK: wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
Image size: 944.5'x626.8'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.92"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 03:36:40.670 +45:59:26.62 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 03:36:01.913 +46:00:00.61
Second-epoch image center 03:36:40.670 +45:59:26.62
Angular distance between the image centers 0.1126 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center  03:36:43.314 +45:59:59.09
Second-epoch second image center 03:36:40.670 +45:59:26.62
Angular distance between the image centers 0.01183 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits &> /tmp/tmp.Tt4Wpeg4UD
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits &> /tmp/tmp.YvtvsG0MZH
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits &> /tmp/tmp.EsSLZAmL0a
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits &> /tmp/tmp.rhabfTY5dc
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
Calibrating the magnitude scale
Found non-empty wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits and wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat 
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits and wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat 
Found non-empty wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits and wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat
The reference image (wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits) and catalog (wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat) found
'wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat' -> 'wcsmag.cat'
Read 189134 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 41.2226 to 65.9097 deg, Dec +39.7810 to +51.4146 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 41.2226 to 65.9097 deg, Dec 39.7810 to 51.4146 deg
Loaded 12673 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 6489 out of 9455 total matches.
Matched with Tycho-2 9455 out of 189134 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.834200
a=0.000000 b=1.000000 c=22.834200
From vast_summary.log: estimated ref. image limiting mag.:  -7.11
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.72

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.72

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 189134 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 41.2226 to 65.9097 deg, Dec +39.7810 to +51.4146 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 41.2226 to 65.9097 deg, Dec 39.7810 to 51.4146 deg
Loaded 12673 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 6489 out of 9455 total matches.
Matched with Tycho-2 9455 out of 189134 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Forced-photometry filter: calibrated wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits -> calib.txt_param_ref_wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits (aperture=4.4)
Read 187812 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 41.2223 to 65.9102 deg, Dec +39.7810 to +51.4199 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 41.2223 to 65.9102 deg, Dec 39.7810 to 51.4199 deg
Loaded 12677 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 6500 out of 9428 total matches.
Matched with Tycho-2 9428 out of 187812 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
Forced-photometry filter: calibrated wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits -> calib.txt_param_ref_wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits (aperture=4.5)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 20 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 1.8 pix  Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
 1.9 pix  Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
 2.7 pix  fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
 2.6 pix  fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
Limiting magnitude estimates:
 15.7 mag.  Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
 15.7 mag.  Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
 13.9 mag.  fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
 13.9 mag.  fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
All-image limiting magnitude estimate:  13.9 (SNR )  13.3 (80% of stars)  with default.sex.telephoto_lens_vSTL
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
############ /tmp/tmp.Tt4Wpeg4UD (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits' -> 'wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
WCS_IMAGE_NAME=wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
WCS-calibrated image found: wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Checking if the catalog wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat corresponding to the image wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits alredy exist and is non-empty...
Catalog wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat corresponding to the image wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
WCS catalog name: wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=52, blended=23506, bad_region=2, passed=189082
Got 189082 stars (including 165266 good ones) from the SExtractor catalog wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat 
util/solve_plate_with_UCAC5 got 189082 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.5'
Seting catalog search parameters based on the expected field of view 941.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013076 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010461 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 648 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4931 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4919 matched stars entering correct_measured_positions(), 4919 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4919 matched stars entering correct_measured_positions(), 189082 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 648 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4931 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4919 matched stars entering correct_measured_positions(), 189082 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Accuracy estimation diagnostic: 4919 matched stars entering correct_measured_positions(), 189082 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Excluding outliers - 4919 stars left (next iteration limit 5410)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits N_match=4919 sigma_overall_arcsec=0.399 sigma_q1_arcsec=0.511 sigma_q2_arcsec=0.387 sigma_q3_arcsec=0.360 sigma_q4_arcsec=0.338 n_q1=1270 n_q2=1122 n_q3=1278 n_q4=1249 worst_quadrant_to_overall_ratio=1.280
The image catalog is written to wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits -region wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Per-02-Q1b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.YvtvsG0MZH (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits' -> 'wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
WCS_IMAGE_NAME=wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
WCS-calibrated image found: wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
Checking if the catalog wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat corresponding to the image wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits alredy exist and is non-empty...
Catalog wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat corresponding to the image wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
WCS catalog name: wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=6, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=57, blended=23390, bad_region=1, passed=187749
Got 187749 stars (including 164063 good ones) from the SExtractor catalog wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat 
util/solve_plate_with_UCAC5 got 187749 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.5'
Seting catalog search parameters based on the expected field of view 941.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013076 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010461 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 648 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4931 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4916 matched stars entering correct_measured_positions(), 4916 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4916 matched stars entering correct_measured_positions(), 187749 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 648 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4931 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4916 matched stars entering correct_measured_positions(), 187749 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Accuracy estimation diagnostic: 4916 matched stars entering correct_measured_positions(), 187749 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Excluding outliers - 4916 stars left (next iteration limit 5407)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits N_match=4916 sigma_overall_arcsec=0.378 sigma_q1_arcsec=0.435 sigma_q2_arcsec=0.379 sigma_q3_arcsec=0.344 sigma_q4_arcsec=0.338 n_q1=1275 n_q2=1106 n_q3=1273 n_q4=1262 worst_quadrant_to_overall_ratio=1.151
The image catalog is written to wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits -region wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Per-02-Q1b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.EsSLZAmL0a (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
WCS_IMAGE_NAME=wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
WCS-calibrated image found: wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
Checking if the catalog wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits.wcscat corresponding to the image wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits alredy exist and is non-empty...
Catalog wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits.wcscat corresponding to the image wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
WCS catalog name: wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=3, blended=1169, bad_region=2, passed=24780
Got 24780 stars (including 23569 good ones) from the SExtractor catalog wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits.wcscat 
util/solve_plate_with_UCAC5 got 24780 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 944.5'
Seting catalog search parameters based on the expected field of view 944.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013118 (47.2 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010494 (37.8 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 653 to 708 (Dec 40.7 to 51.4)
Done reading UCAC5 zone files...
Matched 4916 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4878 matched stars entering correct_measured_positions(), 4874 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.47" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4878 matched stars entering correct_measured_positions(), 24728 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 653 to 708 (Dec 40.7 to 51.4)
Done reading UCAC5 zone files...
Matched 4915 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4879 matched stars entering correct_measured_positions(), 24728 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 
Accuracy estimation diagnostic: 4879 matched stars entering correct_measured_positions(), 24728 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.47" 
Excluding outliers - 4879 stars left (next iteration limit 5365)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: the 4879 catalog matches do not cover the frame (1511/65/2042/1261 per quadrant, need 304 in each) - keeping the original solution
WCS_QUALITY_DIAG: file=fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits N_match=4879 sigma_overall_arcsec=0.497 sigma_q1_arcsec=0.565 sigma_q2_arcsec=0.566 sigma_q3_arcsec=0.424 sigma_q4_arcsec=0.555 n_q1=1511 n_q2=65 n_q3=2042 n_q4=1261 worst_quadrant_to_overall_ratio=1.141
The image catalog is written to wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits -region wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.rhabfTY5dc (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
WCS_IMAGE_NAME=wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
WCS-calibrated image found: wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
Checking if the catalog wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits.wcscat corresponding to the image wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits alredy exist and is non-empty...
Catalog wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits.wcscat corresponding to the image wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
WCS catalog name: wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=8, blended=1134, bad_region=1, passed=24015
Got 24015 stars (including 22829 good ones) from the SExtractor catalog wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits.wcscat 
util/solve_plate_with_UCAC5 got 24015 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 944.5'
Seting catalog search parameters based on the expected field of view 944.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013118 (47.2 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010494 (37.8 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 650 to 708 (Dec 40.2 to 51.4)
Done reading UCAC5 zone files...
Matched 4914 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4877 matched stars entering correct_measured_positions(), 4870 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.48" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4877 matched stars entering correct_measured_positions(), 23936 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 650 to 708 (Dec 40.2 to 51.4)
Done reading UCAC5 zone files...
Matched 4912 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4876 matched stars entering correct_measured_positions(), 23936 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 
Accuracy estimation diagnostic: 4876 matched stars entering correct_measured_positions(), 23935 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.47" 
Excluding outliers - 4876 stars left (next iteration limit 5364)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: the 4876 catalog matches do not cover the frame (1259/115/2214/1288 per quadrant, need 304 in each) - keeping the original solution
WCS_QUALITY_DIAG: file=fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits N_match=4876 sigma_overall_arcsec=0.501 sigma_q1_arcsec=0.558 sigma_q2_arcsec=0.640 sigma_q3_arcsec=0.436 sigma_q4_arcsec=0.561 n_q1=1259 n_q2=115 n_q3=2214 n_q4=1288 worst_quadrant_to_overall_ratio=1.278
The image catalog is written to wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits -region wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Skipping WCS quality comparison: not the first SExtractor pass (default.sex.telephoto_lens_vSTL)
Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/wcs_fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits
Saving fully-calibrated image wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/wcs_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits
Preparing the HTML report for the field Per-02-Q1b1x1 with default.sex.telephoto_lens_vSTL
make_report_in_HTML.sh Phase 1 (network queries): 1s
Pre-generating preview images in parallel...
Done pre-generating preview images.
Pre-generating finding charts in parallel...
Done pre-generating finding charts.
make_report_in_HTML.sh Pre-generation: 1s
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 215061_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 215061_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 2     2026 09 21.14893    2461304.64893    6.87    04:21:33.23 +46:29:53.8   9406 4100   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  04:21:33.18 +46:29:53.9 in the exclusion list exclusion_list_bsc.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 215066_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 215066_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 2     2026 09 21.14893    2461304.64893    7.73    02:54:14.71 +42:35:17.2   0162 1174   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  02:54:14.65 +42:35:17.2 in the exclusion list exclusion_list_tycho2.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 215530_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 215530_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 2     2026 09 21.14893    2461304.64893    12.22    02:55:34.32 +48:21:27.3   0577 4666   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  02:55:34.30 +48:21:27.4 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 215780_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 215780_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 2     2026 09 21.14893    2461304.64893    12.71    02:56:38.33 +47:11:10.3   0635 3947   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  02:56:38.29 +47:11:10.2 in the exclusion list exclusion_list_bsc.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 215800_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 215800_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 2     2026 09 21.14893    2461304.64893    12.74    03:04:29.80 +50:02:29.2   1529 5630   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  03:04:29.87 +50:02:28.3 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 215888_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 215888_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 2     2026 09 21.14893    2461304.64893    12.84    03:43:06.31 +47:48:30.9   5377 4331   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  03:43:06.21 +47:48:29.1 in the exclusion list exclusion_list_bbsc.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 215913_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 215913_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 2     2026 09 21.14893    2461304.64893    12.64    02:57:48.50 +46:39:04.2   0735 3614   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  02:57:48.47 +46:39:05.1 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 216102_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 216102_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 2     2026 09 21.14893    2461304.64893    13.16    03:02:48.64 +47:05:23.8   1273 3849   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  03:02:48.64 +47:05:23.2 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 216230_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 216230_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 2     2026 09 21.14893    2461304.64893    13.10    02:53:30.85 +48:34:27.8   0378 4815   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  02:53:30.88 +48:34:27.6 in the exclusion list exclusion_list_bsc.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 216247_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 216247_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 2     2026 09 21.14893    2461304.64893    12.92    02:56:18.08 +45:53:13.4   0543 3162   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  02:56:18.16 +45:53:13.8 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 216258_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 216258_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 2     2026 09 21.14893    2461304.64893    13.35    03:04:29.19 +50:03:04.2   1528 5636   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  03:04:29.19 +50:03:05.0 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 216319_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 216319_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 2     2026 09 21.14893    2461304.64893    12.94    03:40:04.63 +48:56:46.2   5027 4993   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  03:40:04.67 +48:56:46.9 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 216542_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 216542_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 2     2026 09 21.14893    2461304.64893    13.05    03:51:28.57 +49:46:37.9   6101 5591   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  03:51:28.61 +49:46:37.8 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 187847_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 187847_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 3     2026 09 21.14893    2461304.64893    12.81    04:08:11.07 +49:01:27.4   7791 5361   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  04:08:11.03 +49:01:26.9 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 133379_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 133379_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 3     2026 09 21.14893    2461304.64893    12.59    04:13:52.35 +48:00:13.1   8456 4848   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  04:13:52.37 +48:00:14.0 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 82031_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 82031_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 3     2026 09 21.14893    2461304.64893    12.19    03:30:37.84 +45:15:03.9   4174 2721   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  03:30:37.60 +45:15:07.1 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 131860_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 131860_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 3     2026 09 21.14893    2461304.64893    12.95    03:03:46.73 +47:10:42.4   1376 3897   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  03:03:46.75 +47:10:42.6 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 33246_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 33246_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 3     2026 09 21.14893    2461304.64893    12.01    03:14:44.15 +42:22:53.3   2462 0963   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  03:14:44.14 +42:22:53.3 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 175405_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 175405_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 3     2026 09 21.14893    2461304.64893    11.61    04:21:34.72 +49:37:14.2   9043 5965   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  04:21:34.80 +49:37:13.8 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 110832_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109
The candidate 110832_fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109 did not pass the final checks
Discovery image 3     2026 09 21.14893    2461304.64893    12.68    04:16:55.96 +46:50:43.3   8889 4214   /data_ssd/NMW-TexasTech/workdir//img_2026-09-20_CI_Per-02-Q1b1x1_223502_TTUQ1b1x1_3262462_QiQYvnok/fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits

**** FOUND  04:16:56.12 +46:50:44.5 in the exclusion list exclusion_list.txt ****
make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 2s
Prepared the HTML report for the field Per-02-Q1b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
Source monitoring: NOT measuring the monitored positions on the field Per-02-Q1b1x1 - the transient search raised a processing error: ERROR: large change in astrometric-star counts between the two new images (q1: 696 -> 516, 25.862% > 20%; fd_Per-02-Q1b1x1_2026-09-20_22-33-22_20.00sec_0.00C_LIGHTs_0108.fits vs fd_Per-02-Q1b1x1_2026-09-20_22-34-17_20.00sec_-0.00C_LIGHTs_0109.fits) - possible passing clouds or a bad plate solution; continuing processing
########### Completed Per-02-Q1b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ1.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461304.64829725 -observatory V36
12:59:24.30 -06:54:10.8 Mercury (-0.3mag)
14:04:18.41 -18:59:26.5 Venus (-4.8mag)
07:50:27.27 +21:52:33.5 Mars (1.2mag)
09:20:03.61 +16:09:58.3 Jupiter (-1.8mag)
00:48:13.04 +02:14:24.2 Saturn (0.4mag)
04:13:31.00 +21:01:34.5 Uranus (5.7mag)
00:12:23.02 -00:12:20.0 Neptune (7.7mag)
20:24:46.80 -23:42:10.1 Pluto (14.5mag)
19:39:44.62 -25:20:26.6 Moon (-11.0mag)
-rw-r--r-- 1 apache apache 363 Sep 20 22:39 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461304.64829725:
09:20:10.95 +16:09:21.0 Io (6.0mag)
09:20:05.62 +16:09:49.4 Europa (6.2mag)
09:20:18.07 +16:08:42.9 Ganymede (5.6mag)
09:19:44.14 +16:11:38.4 Callisto (6.8mag)
09:18:27.06 +16:31:04.9 Himalia (15.7mag)
09:20:01.29 +16:10:10.2 Thebe (16.5mag)
09:17:50.60 +16:25:41.2 Elara (17.6mag)
09:23:31.42 +15:34:10.9 Pasiphae (17.9mag)
09:20:08.09 +16:31:35.9 Carme (18.9mag)
00:48:18.92 +02:14:35.6 Titan (8.3mag)
00:48:07.68 +02:14:11.8 Rhea (9.6mag)
00:47:49.38 +02:14:37.2 Iapetus (11.0mag)
00:47:59.63 +02:14:03.2 Hyperion (14.3mag)
00:46:46.54 +02:03:00.8 Phoebe (16.3mag)
-rw-r--r-- 1 apache apache 568 Sep 20 22:40 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461304.64829725:
00:04:38.90 +14:00:07.0 JWST
18:51:18.94 +13:28:05.2 Chandra
09:45:44.66 -54:36:45.0 XMM-Newton
-rw-r--r-- 1 apache apache 96 Sep 20 22:39 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461304.64829725 -observatory V36
03:46:23.91 +19:51:54.3 17.3mag P/1996 R2 (Lagerkvist)
18:09:31.09 -33:56:30.5 14.5mag P/2010 H2 (Vales)
07:29:09.60 -71:06:33.6 17.2mag C/2014 UN271 (Bernardinelli-Bernstein)
06:16:41.63 +34:04:19.4 17.7mag C/2017 K2 (PANSTARRS)
05:04:54.62 +47:10:45.9 16.4mag P/2021 N1 (ZTF)
22:03:06.33 +26:51:25.3 17.5mag C/2022 E2 (ATLAS)
07:19:49.57 +25:43:58.3 16.9mag C/2022 N2 (PANSTARRS)
11:02:07.93 +26:46:39.6 17.1mag C/2022 QE78 (ATLAS)
09:57:13.53 +05:09:18.8 18.0mag C/2022 R6 (PANSTARRS)
15:27:18.16 -16:51:24.7 15.0mag C/2023 R1 (PANSTARRS)
08:49:35.24 +33:50:28.7 16.0mag C/2024 E1 (Wierzchos)
15:09:02.93 +15:10:50.6 18.0mag C/2024 G6 (ATLAS)
18:27:19.06 +42:32:21.6 13.7mag C/2024 J3 (ATLAS)
20:08:49.35 +48:18:02.1 17.4mag C/2024 R4 (PANSTARRS)
05:41:51.21 -13:15:05.8 14.9mag C/2024 T5 (ATLAS)
11:40:56.98 +17:39:45.6 16.6mag C/2025 V2 (Rankin)
13:31:35.57 -01:01:20.1 16.7mag C/2025 Y1 (ATLAS)
17:23:58.85 +71:22:22.6 16.5mag C/2026 A2 (Bok)
02:56:32.68 +45:26:35.9 17.6mag C/2026 B2 (Sun-Gao)
12:26:16.43 +12:25:20.7 17.6mag A/2026 E1
22:37:57.47 -34:54:11.4 13.7mag 10P/Tempel
01:41:00.60 +39:12:06.1 17.4mag 11P/Tempel-Swift-LINEAR
11:57:31.60 -06:32:06.1 16.3mag 29P/Schwassmann-Wachmann
12:36:27.03 -09:24:18.4 17.8mag 63P/Wild
07:04:43.34 +18:04:11.2 17.1mag 78P/Gehrels
03:14:49.05 +14:59:17.8 16.8mag 88P/Howell
06:25:43.65 +33:44:52.8 17.2mag 112P/Urata-Niijima
08:11:18.99 +20:54:51.3 17.8mag 114P/Wiseman-Skiff
10:58:20.54 +17:51:07.5 14.8mag 123P/West-Hartley
13:17:51.83 -26:01:11.1 17.6mag 124P/Mrkos
06:33:02.61 +20:09:16.7 15.8mag 128P/Shoemaker-Holt
01:08:36.00 -13:54:47.4 14.3mag 161P/Hartley-IRAS
09:35:58.95 +07:17:17.7 12.7mag 169P/NEAT
03:32:15.09 +07:06:32.1 14.6mag 220P/McNaught
05:23:22.27 +40:20:06.3 15.3mag 260P/McNaught
15:35:01.82 -01:46:51.9 17.9mag 391P/Kowalski
09:39:27.04 +16:09:13.7 17.8mag 450P/LONEOS
-rw-r--r-- 1 apache apache 1.9K Sep 20 22:39 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
16:21:12.24 +57:37:51.30  SN 2026aafh  2026-09-14.11 15.02
23:36:00.27 -19:28:18.00  SN 2026aaks  2026-09-14.44 16.89
16:35:24.86 -05:32:38.20  SN2026aasi  2026-09-12.99 16.58
16:46:08.71 +37:25:21.80  SN2026aafk  2026-09-13.25 17.4
23:48:37.86 +50:25:24.60  SN2026aafs  2026-09-13.47 17
21:20:27.02 +02:10:42.50  SN2026aagh   -------
08:02:26.85 -24:37:44.10  ASASSN-26fe  2026-09-13.34 13.67
02:29:34.91 +23:06:56.30  SN2026aars  2026-09-12.27 16.93
02:47:25.52 -32:58:34.50  SN 2026znh  2026-09-9.92 16.26
04:59:14.53 -83:27:58.80  ASASSN-26fd  2026-09-9.11 17.27
17:52:06.79 -23:43:20.70  ASASSN-26fc  2026-09-8.79 12.14
03:52:53.26 -14:19:28.70  SN 2026zfw  2026-09-8 17.78
01:53:26.46 +10:07:25.10  SN2026aacj  2026-09-7.17 16.27
20:04:34.47 +62:38:38.10  SN2026zji  2026-09-7.14 15.87
22:37:05.59 +34:24:35.70  SN2026aaiv  2026-09-7.22 13.48
22:24:21.29 -10:25:31.60  ASASSN-26fb  2026-09-5.3 13.93
00:44:54.28 +41:33:10.50  AT2026aabo  2026-09-3.29 15.02
00:52:12.40 -58:22:08.60  SN 2026zhl  2026-08-31.92 16.51
19:53:57.87 +61:00:19.70  ASASSN-26fa  2026-08-31.18 14.63
00:21:50.96 -09:29:16.30  AT2026zwp  2026-08-31.41 15.59
19:45:06.20 +18:22:48.80  V488  2026-08-30.13 9.37
18:25:12.79 -22:25:29.10  V8055  2026-08-30 10.76
17:17:45.96 +64:31:40.10  ASASSN-26ez  2026-08-25.13 10.87
19:02:47.09 +58:08:21.00  AT2026zwo  2026-08-24.16 15.78
04:20:07.58 -42:26:59.90  AT2026zjy  2026-08-23.03 15.91
03:08:18.02 +11:54:46.50  SN2026ymb  2026-08-23.4 16.44
20:22:32.48 -50:45:14.30  SN2026yid  2026-08-22.82 15.13
04:24:28.39 -56:20:21.60  ASASSN-26ey  2026-08-20.02 15.55
16:46:37.81 -63:14:59.80  ASASSN-26ex  2026-08-18.78 3.63
21:28:47.85 +20:31:03.60  SN 2026sfn  2026-08-16.3 17.09
23:01:28.67 -61:00:39.00  SN 2026yib  2026-08-14.85 17.36
00:22:23.20 -32:16:02.70  SN 2026whu  2026-08-14.96 16.5
19:56:21.71 -37:24:19.90  ASASSN-26ew  2026-08-13.82 14.73
13:53:14.21 +00:26:52.00  SN 2026wkv  2026-08-10.12 15.83
05:21:07.61 +23:38:20.10  TCP J05210763+2338194  2026-08-10.59 9.34
01:28:20.49 +40:13:27.10  SN2026wpd  2026-08-9.34 16.37
23:47:50.89 +49:28:51.30  SN2026wjs  2026-08-9.24 17.09
16:03:20.92 +17:43:23.70  AT2026xau  2026-08-9.3 17.71
01:10:22.05 -09:34:08.50  SN2026weo  2026-08-7.46 15.76
00:56:54.35 -35:55:29.40  AT2026wdy  2026-08-5.05 16.08
22:08:07.63 -53:03:58.90  AT2026wek  2026-08-3.82 17.17
14:51:51.34 +66:13:24.60  ASASSN-26ev  2026-08-2.15 14.02
12:06:50.79 -36:16:06.20  SN2026wgm  2026-08-1.73 15.61
16:56:36.90 -59:29:26.00  ASASSN-26er  2026-07-25.82 15.09
01:21:27.83 -10:37:05.00  SN2026vbh  2026-07-25.61 15.97
21:17:31.59 +22:25:50.90  ASASSN-26eq  2026-07-24.37 15.13
18:53:36.89 +16:56:43.60  ASASSN-26ep  2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50  ASASSN-26et  2026-07-22.76 13.98
13:00:47.82 +15:42:17.60  SN2026uwk  2026-07-21.75 16.38
18:52:31.11 -32:28:00.90  ASASSN-26en  2026-07-21.77 14.63
14:42:58.01 -62:32:59.10  ASASSN-26es  2026-07-20.79 15.36
20:12:45.57 -32:53:13.00  ASASSN-26em  2026-07-20.94 16.83
18:54:24.33 -46:11:51.70  ASASSN-26eu  2026-07-20.93 14.86
03:18:56.99 -80:55:10.40  AT2026ugi  2026-07-20.03 17.12
18:43:58.40 +24:22:41.80  ASASSN-26eo  2026-07-19.36 16.16
04:50:01.03 -02:22:33.80  ASASSN-26ej  2026-07-16.17 17.02
18:34:55.28 -31:41:00.90  ASASSN-26ek  2026-07-16.24 15.73
17:07:43.61 -44:21:53.50  ASASSN-26el  2026-07-15.86 16.01
14:45:08.35 +24:13:12.30  ASASSN-26ei  2026-07-16.17 16.46
10:00:46.44 -32:36:31.10  AT 2023mhb  2026-07-14.73 16.67
14:39:37.45 -11:22:36.20  AT 2026unl  2026-07-15.27 17.11
10:49:42.57 -11:25:55.80  ASASSN-26eh  2026-07-14.72 16.58
19:33:53.06 -07:15:00.80  ASASSN-22le  2026-07-14.15 15.5
02:45:40.52 -27:55:30.30  ASASSN-26ef  2026-07-12.35 15.86
23:26:43.80 +04:42:39.70  SN 2026qtn  2026-07-12.22 16.47
02:19:17.26 +28:57:15.40  ASASSN-26ec  2026-07-11.53 2.78
18:31:15.56 -05:34:31.50  AT2026stb  2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00  AT2026pjf  2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70  SN2026pir  2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30  ASASSN-26ed  2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10  AT2026qil  2026-07-9.3 16.15
20:21:30.50 -32:03:40.10  ASASSN-26ee  2026-07-7.22 15.53
19:37:44.09 -05:35:42.80  AT2026ryu  2026-07-7.17 14.88
11:06:55.46 -04:07:04.50  AT2026qqg  2026-07-5.01 16.82
19:07:23.69 -74:13:37.30  AT2026qly  2026-07-5.02 17.31
17:57:43.80 +27:18:40.10  ASASSN-26ea  2026-07-5.07 16.67
19:59:01.43 -32:07:34.30  ASASSN-26eb  2026-07-4.97 15.52
18:46:50.35 -57:44:13.20  SN 2026qqp  2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90  ASASSN-26dz  2026-07-5.14 15.91
19:14:31.37 +12:03:52.90  AT 2026rdg  2026-07-3.43 11.81
04:05:50.09 -70:24:34.40  AT 2026qpr  2026-06-30.4 15.96
13:45:37.49 -05:59:35.80  SN 2026pub  2026-06-30.09 16.01
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
14:10:13.44 -38:46:46.10  AT2026pvk  2026-06-22.06 16.53
20:56:47.23 -18:31:05.20  AT2026plb  2026-06-21.31 16.4
15:44:29.68 +21:00:59.30  SN2026ore  2026-06-21.29 17.57
23:50:05.98 -14:01:41.30  AT2026oxl  2026-06-21.52 17.64
17:36:54.73 -18:10:04.20  AT2026ouj  2026-06-20.92 15.15
00:34:04.08 -30:22:09.20  AT2026ntk  2026-06-18.09 17.34
20:49:13.39 +25:17:59.20  ASASSN-26du  2026-06-15.39 15.93
23:09:30.84 +32:40:42.00  SN2026oxc  2026-06-14.35 16.83
02:02:26.78 +32:04:21.30  AT2026ovz  2026-06-14.59 15.39
21:26:28.11 -72:31:19.50  AT2026nwc  2026-06-11 17.05
-rw-r--r-- 1 apache apache 5.7K Sep 20 22:39 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
00:41:24.04 +40:49:02.8  PNV J00412404+4049028  2026-07-25.0157  18.7mag
00:43:04.26 +41:02:28.6  PNV J00430426+4102286  2026-07-26.1512  20mag
14:51:51.40 +66:13:24.0  TCP J14515140+6613240  2026-07-29.2561  13.5mag
00:43:06.15 +41:22:08.2  PNV J00430615+4122082  2026-07-30.0085  19.4mag
00:41:33.23 +41:10:12.2  PNV J00413323+4110122  2026-08-02.8913  17.1mag
05:21:07.63 +23:38:19.4  TCP J05210763+2338194  2026-08-06.4109  11.2mag
22:57:17.96 +47:07:41.8  TCP J22571796+4707418  2026-08-09.3289  14.3mag
09:13:38.17 +76:28:18.1  PSN J09133817+7628181  2026-08-09.8037  15.4mag
00:43:17.29 +41:26:48.6  PNV J00431729+4126486  2026-08-14.0920  16.8mag
00:42:52.82 +41:10:58.6  PNV J00425282+4110586  2026-08-17.7723  19.9mag
00:42:52.83 +41:10:59.6  PNV J00425283+4110596  2026-08-18.6119  19.3mag
18:25:12.76 -22:25:29.3  TCP J18251276-2225293  2026-08-19.1062  9.4mag
18:03:09.04 +12:18:14.0  TCP J18030904+1218140  2026-08-19.5199  14.9mag
19:45:06.48 +18:22:42.2  PNV J19450648+1822422  2026-08-25.1278  9.0mag
00:42:54.65 +41:22:59.3  PNV J00425465+4122593  2026-08-25.4712  18.9mag
00:42:50.38 +41:18:58.76  PNV J00425038+4118587  2026-09-04.1512  18.2mag
00:42:12.76 +41:16:28.4  PNV J00421276+4116284  2026-09-10.9176  18.67Cmag
17:52:06.80 -23:43:20.7  TCP J17520680-2343207  2026-09-08.7896  12.6mag
00:42:40.94 +41:15:37.1  PNV J00424094+4115371  2026-09-17.8925  18.3mag
08:49:20.13 -09:19:15.8  TCP J08492013-0919158  2026-09-18.4698  13.3mag
-rw-r--r-- 1 apache apache 190K Sep 20 22:39 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
18:22:14.640 +40:00:51.94  AT 2026aaib  2026-08-29.73 20.32
18:27:15.460 +42:18:52.04  AT 2026aaia  2026-08-29.72 20.64
18:21:59.150 +41:20:47.10  AT 2026aahz  2026-08-29.72 21.17
00:25:39.480 +42:47:23.08  AT 2026aahy  2026-08-26.72 20.4
01:04:53.450 +39:52:15.46  AT 2026aahx  2026-08-20.72 20.84
00:44:00.810 +43:14:46.59  AT 2026aahw  2026-08-20.72 21.08
22:51:34.110 +15:44:03.01  AT 2026aahv  2026-08-20.71 21.05
21:59:13.640 +10:22:20.47  AT 2026aahu  2026-08-19.62 21.45
22:12:02.290 +18:37:03.36  AT 2026aaht  2026-08-19.61 21.65
21:53:47.780 +17:31:23.29  AT 2026aahs  2026-08-19.61 20.93
22:21:10.910 +25:13:03.64  AT 2026aahr  2026-08-19.60 20.95
23:09:04.550 +23:33:02.89  AT 2026aahq  2026-08-18.73 21.24
23:54:21.700 +42:26:44.49  AT 2026aahp  2026-08-18.73 20.9
23:16:00.720 +40:22:41.13  AT 2026aaho  2026-08-18.72 20.65
17:32:19.490 +27:38:27.97  AT 2026aahn  2026-08-17.71 21.76
17:11:45.550 +22:13:10.66  AT 2026aahm  2026-08-17.71 21.23
17:07:03.110 +22:46:10.65  AT 2026aahl  2026-08-16.63 21.63
17:32:14.940 +21:27:26.95  AT 2026aahk  2026-08-16.63 21.52
17:51:05.090 +19:25:51.66  AT 2026aahj  2026-08-16.63 21.56
23:30:59.770 +18:43:45.97  AT 2026aahi  2026-08-12.72 21.4
-rw-r--r-- 1 apache apache 89K Sep 20 22:42 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Sun Sep 20 22:39:30 CDT 2026
=======================================
TIMING SExtractor: 1 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 2 seconds
TIMING select_aperture: 1 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 5s (0.08 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 64s (1.07 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 141s (2.35 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 1s (0.02 min)
    WAIT_FOR_UCAC5: 5s (0.08 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 0s (0.00 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 216s (3.60 min)
TIMING SExtractor: 42 seconds
TIMING matching_and_photometry: 26 seconds
TIMING lightcurve_write: 3 seconds
TIMING select_aperture: 33 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 124s (2.07 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 2s (0.03 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 38s (0.63 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 1s (0.02 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 1s (0.02 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 2s (0.03 min)
    WAIT_FOR_UCAC5: 0s (0.00 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 2s (0.03 min)
  SE_CONFIG_default.sex.telephoto_lens_vSTL: 169s (2.82 min)
FIELD_Per-02-Q1b1x1: 399s (6.65 min)
=======================================
TOTAL_RUNTIME: 405s (6.75 min)
Finished: Sun Sep 20 22:46:15 CDT 2026